Please help me asap, thanks.

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b

Which problem would you use the following proportion to solve for? 24/x=40/100 a. what is 40% of 24? b. what percent is 24 of 40? c. twenty-four is 40% of what number? d. forty percent of 24 is what number?

Use the equation and type the ordered-pairs. y = 2 ^x